USDA - Center for Nutrition Policy and Promotion

Chapter Five - excerpt

...In prospective studies of adults, compared to non-vegetarian eating patterns, vegetarian-style eating patterns have been associated with improved health outcomes-lower levels of obesity, a reduced risk of cardiovascular disease, and lower total mortality. Several clinical trials have documented that vegetarian eating patterns lower blood pressure.

http://www.evana.org/index.php?id=63284